Well pump



B. F. MARTY WELL PUMP Mall'ch 8, 1927. v 1,619,950

Filed June 22; 1925 /Wrx Patented Mar. 8, 1927.

,UNITED STATES l l 1,619,950y PATENT OFFICE.

. BENJAMIN F. MARTY, OF FRIANT, CALIFORNIA.

WELL PUMP.

g Application led June 22, 1925. Serial No. 38,768.

My vinvention relates to improvement in well pumps and Ithe like wherein a plunger is reciprocated within a pump casing to draw water from a well and force said water upwardly to the surface.

The present invention is an improvement upon my former invention, patented April 14, 1925, Number 1,533,440, and consists of an improved construction and arrangement of elements, Ithe primary object being to provide an improved construction wherein the plunger actuating rod is eifectually enclosed from the plunger to the top of the well to protect the same from the action of water in the casing, and to afford a means for lubricating the plunger.

Another object is to provide an improved construction adapted to increasethe capacity of the pump without increasing the size or stroke of the plunger.

A further object is to provide an improved construction affording a more positive and eiiicient valve action.

A still further object is to provide an improved construction and arrangement of parts to facilitate the removal of the valve mechanism from the well and to avoid restricting the ow of water into the pump.

The invention resides in the particular form and arrangement of parts disclosed inv the drawings forming a part of the present specification wherein like characters of reference are used to designate similar parts throughout said specifications and drawings r and in which,

Fig. 1 is a vertical section of the lower end of a pump casing showing in elevation the manner in which the plunger and valve mechanism are mounted therein.

Fig. 2 is a vertical section showing the coni struction of nism. Y

Fig. 3 is a transverse section taken4 upon the line' 3-3 of Fig. 2 in the direction indi-` cated, parts being broken away to show the underlying structure.

Fig. 4 is a transverse section taken upon the line 4 4 of Fig. 2 in the direction indicated.

Referring to the drawings my improved pump will be seen` as in my former invention above referred to, to consist of a. casing 1 having a reduced lower end portion 2 within which is mounted. a cylinder 3. A valve cage 4 is seated upon a conical seat 6 formed in the bottom of the cylinder 3 and the plunger and valve mechaan annulus 7 is seated upon a conical shoulder 8 formed vbetween the reduced portion 2 and the main upper portion of the casing 1. Openings 9 and 10 in the bottom and top of the cage 4 form communication between the well and interior of the cylinder 3 while openings 11 formed in the sides of the cage and matching with openings 12 formed in the cylinder afford communication between the cage and cylinder and the lowerl end of the reduced casing portion 2. A plunger 14 is mounted for reciprocating movement withinthe cylinder, said plungerbeing operated by an actuating rod 16 extending upwardly through the annulus 7 to the top of the well.

In my present invention I rovide a casing -17 connected at its lower end) to the annulus 7 and loosely enclosing the rod 16 from the annulus to the top of the well. The casing 17 excludes water from the upper portion of the cylinder and protects the rod 16 from corrosion by the water above the cylinder, and at the same time affords a means whereby lubricant may be introduced into the cylinder to reduce'wear and. improve the eficiency of the pump. The casing forms a vent communicating between the top of the cylinder and the atmosphere, 'thereby avoiding the forming of a vacuum above' the plunger during its downward movement and thus permitting the use of asolid rod 16 in place of a tubular rod as in my former invention. In event there is any leakage into the cylinder, past the plunger or otherwise.

\the,water will be forced upwardly through the casing and thereby indicate that the pump should be overhauled.

In order -to increasel the eiiciency and capacity of the pump I provide the annulus 7 with a plurality of relatively large openings 18 arranged annularly to communicate between the upper and lower portions of the casing 1 outside of the cylinder 3. The several openings 18 are arranged to Abe closed by means of a single annular valve plate 19 adapted to be lifted by the pressure of water from 'below during the downward stroke of the plunger 14 and thereby permit water to be forced upwardly through the openings into the upper portion of the casing and Vforced through the openings of t e seated upon the upper surface of the annulus and thereby prevent the Ireturn of water from the upper to the lower portion of the casing.

The casing 4l is provided with a conical seat 23 arranged to receive a valve 24 adapted to close the passage 9 into the well. The valve 24 is mounted upon a stem 26 the upper and lower ends o which are slidably received in beari igs 27 and 28 held in central position within the openings 9 and 1() by means of Webs 29 and 31 connected to the opposite walls of the cage in the form ot i spiders whereby the bearings may be supported within the opening with the least obstruction to the passage of water through the cage. A spring 32 is mounted between the upper side of the valve 24 and the webs 31 to normally hold the valve seated and closing the passage from the well into the cylinder 3.

A threaded extension 33 is formed upon the bottom of the plunger 14, and a corresponding threaded recess 34 is formed inthe top of the cage 4 whereby the plunger may be caused to engage the cage and permit the cage and valve to be withdrawn from the well without removing the casing 1. The threaded recess 34 forms a continuation of the passagev 10 upwardly from the cage into the cylinder, and it will be noted that the opening thus afforded is relatively large and hence presents relatively1 the passage of water therepast.

In operation the plunger 14 is reciprocated within the cylinder 3 by any suitable mechanism. During each upward stroke, water is drawn upwardly past the valve 24 into the cylinder 3. During the succeeding downward stroke the water in the cylinder is 11 and `12 into the lower portion 2 casing 1, and thence upwardly past the valve plate 19 and into the upper ortion of the casing. At each stroke ofp the plunger additional amounts of water are forced into the upper portion of the casing`until the same is entirely filled, and thereafter each stroke will cause the displaced water to be delivered out of the top of the well. By increasing the area of openings at the valves 19 and 24 the resistance to the passage of water is materially lessened and as a result the capacity of the pump is increased over that o my former device above referred to without increasing the diameter or stroke of the v plunger.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is,

1'. A well pump comprising a casing; a cylinder mounted within the lower end of the casin valve means mounted within the bottom o the cylinder into the cylinder and casing; an annulus little obstruction tol for admitting waterv and engaging the said annulus havmounted within the casing upper end of the cylinder,

ing openings communicating between the lower and upper portions of the casing; a

plunger mounted within' the cylinder; 'an .actuating rod connected to the plunger and extending upwardly through the annulus to the top of the well; a casing connected between the annulus and the top of the well and loosely enclosing the actuating rod; an annular valve plate mounted above the annulus and adapted to be seated thereon for closing the openings;a ilange mounted upon the casing and spaced above the valve plate; and a spring mounted between the plate and said flange to normally hold the plate seated upon the annulus to prevent the return of water from the upper to the lower portion of the cylinder.

2. A well pump com rising a casing having a reduced lower en portion; a cylinder mounted within the reduced portion and having openings communicating with the casing; -an annulus seated upon the upper end of the reduced portionl and engaging the upper end of the cylinder, said annulus having a plurality of annularly arranged openings communicating between the lower and upper rportions of the casing; a valve cage seated Iwithin the bottom of the cylinder and having openings communicating between the well and the cylinder and casing; a valve mounted within the cage and adapted to permit the movement of water into the cylinder and casing, and to prevent a return movement of the water into the well; a plunger mounted for reciprocating movement in the cylinder; an actuating rod con.- nected to the plunger and extending upwardly through the annulus to the top of the well; a casing connected at its lower end to the annulus and loosely enclosing the rod; a valve plate mounted above the annulus and adapted to be seated thereon for closing the openings; and means connected between the rod enclosing casing and the plate for normally holding said plate seated upon the annulus/to prevent the return of water from the upper portion to the lower portion of the cylinder.

`3. A well pump comprising ing a reduced lower end ortion; mounted within the re having openings communicating with the lower end of the casing; an annulus seated upon the upper-end of the reduced portion and engaging the upper end of the cylinder, said annulus having a plurality of annularly arranged openings communicatin between the upper and lower portions of t e casing;

a removable valve cage seated within the a cylinder bottom of the cylinder and having openings communicating4 between the we and the a casing havuced portion and I gaged an ment o'f water into the cylinder and casing and to prevent a return movement of the water into the well' a spring mounted in a ca e for normally holding the valve seat a plun er mounted for reciprocatinnr movement in t e cylinder; an actuating rod connectedy to the plunger and extending upwardly through the annulus lto the top of the well; a casing connected at its lower end to the annulus and loosely enclosing the rod; a valve mounted in coinnection with the annulus and adapted to be seated thereon for closing the openings so as to prevent the return of water from the upper to the Alower portion of the well; and a threaded extension formed upon the bottom of the plun er fand adapted to engafre a correspon ing threaded recess formed in the top of the ca e whereby the cage may be enremoved from the well.

4. A well (pump comprising a casing having a reduce lower end portion; a cylinder mounted within the reduced portion and having openings communicating with the lower end of t e casing; an annulus seated upon the upper end of the-reduced portion of the casing and engaging the upper end of the cylinder, said annulus having a plurality of annularly arranged openin s communicating between the upper an lower portions of the casing; a removable valve cage seated within the bottom of the cylinder and having openings communicating between the well and the cylinder and casmg; a valve mounted within the cage and adapted to ermit the movement of water into the cy inder and casin and to prevent a return movement of t c water into the well; a s ring mounted in the cage for normally ho ding the valve seated; a plun er mounted for reciprocating movement wit in the cylinder; an' actuatlng rod connected to the plunger and extending upwardly through theannulus tothe top of the well; a casing connected at its lower end to the annulus and' loosely enclosing the actuating rod; a flange formed upon the easing at a point slight y above the annulus; an annular valve plate resting upon the annulus and adapted to close the openings therethrough; a. spring mounted between the plate 'and the iange to normally keep the plate ,seated upon the annulus to prevent the return of water from the upper portion to the lower portion of the casing; and a threaded extension formed upon the bottom of the plun r and adapted to engage a corresponding t readed recess in the top of the cage 'whereby the cagle may be engaged and removed "from the we l.

In witness whereof I hereunto set my signature.

BENJAMIN F. MARTY. 

